Multi-probe online particle shape and particle size analyzer device

Abstract

The utility model provides a multi-probe on-line particle-shaped particle size analyzer device, which belongs to the technical field of on-line particle-shaped particle size analyzers, and comprises probes and a host machine, one side of the surface of each probe is provided with a through groove, an industrial camera is fixedly arranged in each probe, one side of each through groove is provided with a light source, and the other side of each through groove is provided with a power supply. A telecentric lens is arranged on the other side of the through groove, one end of the telecentric lens is in threaded connection with one end of the industrial camera, and a data line of the industrial camera is fixedly connected with the packaging cover; the host is internally provided with a network switch, a light source controller and a communication optical transceiver, an explosion-proof pipeline is connected behind the packaging cover and internally provided with a camera data line and a light source control line, the network switch is in communication connection with the communication optical transceiver, and the light source controller is in communication connection with the communication optical transceiver. According to the utility model, the defect that the traditional on-line particle-shaped particle size analyzer is easy to cause distortion of observation results is overcome.

Description

Technical Field

[0001] The utility model belongs to the technical field of online particle shape and particle size analyzers, and in particular relates to a multi-probe online particle shape and particle size analyzer device. Background Art

[0002] In today's globalized and rapidly evolving technological landscape, countries around the world have come to realize the crucial importance of developing high-end crystal particle products for advancing scientific and technological progress and economic development. This recognition has prompted governments and relevant institutions to increase R&D investment in this field and rapidly advance systematic engineering research into one of its core technologies: modern industrial crystallization technology. As a key material preparation method, industrial crystallization technology plays a vital role in numerous industries, including pharmaceuticals, chemicals, and food. It not only impacts the final performance of products but also directly affects production efficiency and costs. In actual industrial production processes, if real-time monitoring of crystal size within reactors is possible, production process conditions can be adjusted accordingly to produce products that better meet market demand. This dynamic adjustment not only significantly improves product quality and yield, but also effectively increases yield and reduces unnecessary waste. For example, in the pharmaceutical industry, precise control of crystal size and morphology can improve drug solubility and bioavailability, thereby enhancing efficacy. In the chemical industry, optimizing crystal structure helps enhance product stability and reactivity.

[0003] With the acceleration of industrialization, large-scale production and automation have become the trend. To meet growing market demand, many factories are adopting multiple production lines operating in parallel for large-scale production. In this situation, ensuring the stable and efficient operation of each production line has become a pressing issue. If the crystallization process on multiple production lines can be uniformly monitored and controlled, the flexibility and reliability of the entire production system can be greatly improved, creating enormous practical value. However, achieving this goal faces a series of technical challenges. First, obtaining accurate crystal size data without disrupting normal production is a difficult problem. Second, processing and analyzing large amounts of real-time data for rapid decision-making is also a key consideration. To address these issues, advanced sensor technologies and data analysis methods can be considered. For example, high-precision online particle size analyzers can be used to monitor changes in crystal size in real time; machine learning algorithms can be combined to conduct in-depth analysis of the collected data to predict optimal operating parameters. Utility Model Content

[0004] In view of this, the utility model provides a multi-probe online particle shape and size analyzer device, which solves the disadvantages of the traditional online particle shape and size analyzer that the observation process is not only time-consuming and labor-intensive, but also leads to distortion of the observation results, thereby improving the authenticity and reliability of the observation results.

[0005] The utility model is achieved in this way:

[0006] The utility model provides a multi-probe online particle shape and size analyzer device, which includes a probe and a host. A transparent groove is opened on one side of the surface of the probe, a light source is provided on one side of the transparent groove, and a telecentric lens is provided on the other side of the transparent groove. One end of the telecentric lens is connected to one end of an industrial camera through a thread. The industrial camera is fixed inside the probe. The data cable of the industrial camera is fixedly connected to a packaging cover, and the packaging cover is used to seal the probe.

[0007] The industrial camera and the probe are fixed with precision screw threads, which makes the device highly precise. The focal plane of the telecentric lens is changed up and down by the number of threads between the precision threads inside the probe and the telecentric lens to achieve the focusing effect. The adjusted telecentric lens is connected to the industrial camera. The telecentric lens and the industrial camera are installed inside the probe to form a sealed body. The probe is placed in the solution to be tested. The solution to be tested must not pass through the transparent groove. The light intensity of the light source is adjusted by the light source controller in the host. The light beam shines through the transparent groove onto the solution to be tested. The telecentric lens collects clear image information of the tiny particles in the solution to be tested. The telecentric lens presents the image on the CMOS sensor of the industrial camera. The industrial camera transmits the acquired image information to the host, and the host communicates with the computer via optical fiber.

[0008] On the basis of the above technical solution, the multi-probe online particle shape and size analyzer device of the present invention can also be improved as follows:

[0009] The packaging cover is connected to an explosion-proof pipeline behind, which contains a camera data line and a light source control line.

[0010] Furthermore, the host has a built-in network switch, a light source controller and a communication optical terminal. The network switch is communicatively connected to the communication optical terminal, and the light source controller is communicatively connected to the communication optical terminal.

[0011] Furthermore, the light source is communicatively connected to the light source controller in the host via the light source control line.

[0012] Furthermore, the industrial camera is connected to the network switch via the camera data cable.

[0013] The industrial camera transmits the acquired image information to the network switch, which uploads the data to the communication optical terminal via a network cable. The communication optical terminal transmits the data to the computer via optical fiber 13. The industrial camera can be any of a 1 / 1.8-inch CMOS camera, a 2 / 3-inch CMOS camera, a 1-inch CMOS camera, and a CCD camera of the same target size.

[0014] Furthermore, the light source is arranged at the inner bottom of the probe to form transmissive lighting.

[0015] The probe is made of Hastelloy, a material with excellent sealing, corrosion resistance, pressure resistance, and temperature resistance. It can be used in environments not exceeding 120°C. The probe can be directly inserted into the solution to be tested, allowing real-time online observation of the changes in tiny particles in the solution without the need for sampling or slide preparation.

[0016] Furthermore, the transparent groove is provided with a window, and the light source provides lighting through the window at the transparent groove.

[0017] The beneficial effect of adopting the above-mentioned improvement scheme is that the window is made of sapphire glass.

[0018] Furthermore, a light source port is provided on one side of the surface of the packaging cover, and the light source is communicatively connected to the light source controller in the host through the light source port.

[0019] Furthermore, a communication port is provided on one side of the light source port, and the industrial camera is communicatively connected to the network switch in the host through the communication port.

[0020] Furthermore, the probe is made of any one of stainless steel, Hastelloy, niobium-tantalum alloy, titanium alloy and zirconium alloy, and has an explosion-proof design.

[0021] Compared with the prior art, the multi-probe online particle shape and size analyzer provided by the present invention has the following beneficial effects:

[0022] Real-time online observation:

[0023] An important feature of this utility model is that it can realize real-time online observation of tiny particles in solution. By using a telecentric lens in combination with an industrial camera, the focal plane can be aligned with the transparent tank, and the front end of the probe is placed in the solution so that the solution to be tested does not pass through the transparent tank. In this way, the process of tiny particles changing in solution can be directly observed without sampling and making slides. This non-contact observation method not only simplifies the observation process, but also avoids damage to the sample, ensuring the authenticity and reliability of the observation results;

[0024] High-precision image acquisition:

[0025] The telecentric lens has a fixed focal length, ensuring stable image acquisition and reducing image blur caused by distance changes. Furthermore, the light intensity can be adjusted by the light source controller to ensure uniform light distribution, avoid shadows, and obtain clearer image information. This high-precision image acquisition method enables operators to more accurately identify and analyze tiny particles in solutions, providing a solid foundation for subsequent quality control and process optimization.

[0026] Multi-channel observation:

[0027] The multi-channel host can simultaneously acquire image information from multiple probes (two or more probes), allowing the operator to simultaneously observe particle image information in different solutions in multiple containers. This multi-channel observation capability not only improves observation efficiency, but also allows the operator to compare and analyze reaction processes in different containers, helping to discover potential optimization points. For example, during the process of drug synthesis, by comparing the changes in particles under different reaction conditions, the optimal reaction parameters can be found, thereby improving product quality and yield.

[0028] Adapt to complex industrial environment:

[0029] The probe features a pressure-resistant, temperature-resistant, sealed, and explosion-proof design, enabling stable operation in complex industrial production environments. This means the probe can observe under harsh conditions such as high pressure and high temperature, making it suitable for monitoring large-scale industrial reactors. This adaptability makes this online observation device widely applicable in various industrial scenarios, such as pharmaceuticals, chemicals, and food processing, helping companies improve production efficiency while ensuring product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0031] Figure 1 This is an example diagram of a multi-probe online particle shape and size analyzer device;

[0032] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0033] 11. Probe; 12. Transparent slot; 13. Light source; 14. Telecentric lens; 15. Industrial camera; 16. Package cover; 161. Camera data cable; 162. Light source control cable; 17. Host; 174. Network switch; 175. Light source controller; 176. Communication optical terminal. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention.

[0035] like Figure 1 As shown, it is a first embodiment of a multi-probe online particle shape and size analyzer provided by the utility model. In this embodiment, it includes a probe 11 and a host 17. A transparent groove 12 is opened on one side of the surface of the probe 11. A light source 13 is provided on one side of the transparent groove 12. A telecentric lens 14 is provided on the other side of the transparent groove 12. One end of the telecentric lens 14 is connected to one end of an industrial camera 15 by a thread. The industrial camera 15 is fixed inside the probe 11. The data cable of the industrial camera 15 is fixedly connected to the packaging cover 16. The packaging cover 16 is used to seal the probe 11.

[0036] The host 17 is a multi-channel host. The multi-channel host model is MC-EP-1; the multi-channel light source controller model is LC-4; and the multi-channel network switch model is NS-I-8.

[0037] A multi-channel host is a computer or electronic device capable of processing multiple input signals simultaneously. In the present invention, the multi-channel host is primarily used to receive and process image information transmitted from multiple probes. "Multi-channel" here refers to the ability to simultaneously process multiple independent input channels, each corresponding to a probe. A multi-channel host can be connected to one or more probes.

[0038] The telecentric lens can adopt any of the magnification factors such as 0.2, 0.5, 0.75, 1, 2, 3, 4, 6, 8, 10, etc.

[0039] In the above technical solution, the rear of the packaging cover 16 is connected to an explosion-proof pipeline, which contains a camera data line 161 and a light source control line 162 .

[0040] Furthermore, in the above technical solution, the host 17 has a built-in network switch 174 , a light source controller 175 and a communication optical terminal 176 . The network switch 174 is communicatively connected to the communication optical terminal 176 , and the light source controller 175 is communicatively connected to the communication optical terminal 176 .

[0041] Furthermore, in the above technical solution, the light source 13 is communicatively connected to the light source controller 175 in the host 17 via the light source control line 162 .

[0042] Furthermore, in the above technical solution, the industrial camera 15 is connected to the network switch 174 via a camera data cable 161 .

[0043] Furthermore, in the above technical solution, the light source 13 is arranged at the inner bottom of the probe 11 to form transmissive lighting.

[0044] Furthermore, in the above technical solution, the transparent groove 12 is provided with a window, and the light source 13 provides lighting through the window at the transparent groove 12.

[0045] Furthermore, in the above technical solution, a light source port is provided on one side of the surface of the packaging cover 16 , and the light source 13 is communicatively connected to the light source controller 175 in the host 17 via the light source port.

[0046] Furthermore, in the above technical solution, a communication port is provided on one side of the light source port, and the industrial camera 15 is communicatively connected to the network switch 174 in the host 17 through the communication port.

[0047] Furthermore, in the above technical solution, the probe 11 is made of any one of stainless steel, Hastelloy, niobium-tantalum alloy, titanium alloy and zirconium alloy, and has an explosion-proof design.

[0048] like Figure 1 As shown, it is a second embodiment of a multi-probe online particle shape and size analyzer device provided by the utility model. In this embodiment, a multi-probe online particle shape and size analyzer includes a probe, a transparent groove is opened on one side of the surface of the probe, a light source is provided on one side of the transparent groove, an industrial camera is provided on the other side of the transparent groove, one end of the industrial camera is connected to one end of the industrial camera by a thread, the other end of the industrial camera is fixedly connected to one end of the sealing cover, the other end of the sealing cover is connected to one end of the camera data line, one end of the sealing cover is connected to the light source; the other end of the sealing cover is connected to the light source control line, and the sealing cover is used to seal the probe;

[0049] Specifically, the industrial camera and the inside of the probe are fixed with precision screw threads, which makes the device highly precise. The focal plane of the telecentric lens is changed up and down by the number of threads between the precision threads inside the probe and the telecentric lens to achieve the focusing effect. The adjusted telecentric lens is connected to the industrial camera, and the telecentric lens and the industrial camera are installed inside the probe to form a sealed body. The probe is placed in the solution to be tested, and the solution to be tested must not pass through the transparent groove. The light intensity of the light source is adjusted by the light source controller in the multi-channel host. The light beam is irradiated onto the solution to be tested through the transparent groove. The telecentric lens collects clear image information of tiny particles in the solution to be tested. The telecentric lens presents the image on the CMOS sensor of the industrial camera. The industrial camera transmits the acquired image information to the multi-channel host, and the multi-channel host communicates with the computer via optical fiber.

[0050] In this embodiment, the probe is made of Hastelloy material;

[0051] Specifically, Hastelloy alloy has excellent sealing, corrosion resistance, pressure resistance and temperature resistance, and can be used in an environment not exceeding 120°C. The probe can be directly inserted into the solution to be tested, and the process of changes in tiny particles in the solution can be observed online in real time without sampling and observation.

[0052] In this embodiment, the light source is communicatively connected to the light source controller in the multi-channel host via a light source control line;

[0053] Specifically, the light intensity of the light source is adjusted by the multi-channel light source controller in the multi-channel host to ensure uniform lighting without dark corners. The multi-channel light source controller provides stable DC power and can be adjusted between 0.01A and 3A. At the same time, the multi-channel light source controller can modulate a pulse current of up to 20A, and the minimum pulse width can reach 0.02 milliseconds. The diverse adjustment range can be effectively adjusted according to different solutions to be tested to obtain the best lighting effect.

[0054] In this embodiment, the industrial camera is connected to the multi-channel host through a camera data cable;

[0055] Specifically, the industrial camera transmits the acquired image information to a multi-channel network switch, which uploads the data to a communication optical terminal via a network cable. The communication optical terminal transmits the data to a computer via optical fiber, thereby obtaining a clear image of the tiny particles in the solution to be tested.

[0056] In this embodiment, the light source is arranged at the inner bottom of the probe to form transmissive lighting;

[0057] Specifically, in practical applications, the light source adopts high-power LED white light illumination. The white light of the high-power LED forms a transmissive illumination at the inner bottom of the probe to ensure that the light can pass through the solution to be tested without being too dark.

[0058] In this embodiment, the light source provides illumination through the window at the slit;

[0059] In this embodiment, the window is made of sapphire glass;

[0060] Specifically, in practical applications, the window is a convex lens made of sapphire glass. The light source is converged onto the focal plane of the telecentric lens through the special sapphire convex lens, providing sufficient illumination for the telecentric lens.

[0061] In this embodiment, the industrial camera uses a CMOS camera with a size of 1 / 1.8 inches;

[0062] Specifically, compared to CCD cameras, the minimum exposure time of a 1 / 1.8-inch CMOS camera can reach 0.03 milliseconds, and it can capture moving images under sufficient lighting conditions. At the same time, the minimum pixel size can reach 2.20 microns. Combined with a telecentric lens with a 2x optical magnification, it can observe and photograph particles of about 10 microns, and can clearly reflect the surface morphology information of the particles.

[0063] Specifically, the industrial camera and the inside of the probe are fixed with precision screw threads, which makes the device highly precise. The focal plane of the telecentric lens is changed up and down by the number of threads between the fine rice threads inside the probe and the telecentric lens, thereby achieving the focusing effect. The adjusted telecentric lens is connected to the industrial camera, and the telecentric lens and the industrial camera are installed inside the probe to form a sealed body. The probe is placed in the solution to be tested, and the solution to be tested must not pass through the transparent groove. The light intensity of the light source is adjusted by the light source controller in the multi-channel host, and the light beam is irradiated onto the solution to be tested through the transparent groove. The telecentric lens collects clear image information of tiny particles in the solution to be tested, and the telecentric lens presents the image on the CMOS sensor of the industrial camera. The industrial camera transmits the acquired image information to the multi-channel host, and the multi-channel host communicates with the computer via optical fiber.

[0064] Specifically, the principle of the present utility model is:

[0065] Telecentric lenses and industrial cameras: The combination of a telecentric lens and an industrial camera enables clear observation of microscopic objects. The telecentric lens has a fixed focal length, allowing the focal plane to be aligned within the transparent tank. The tip of the probe is placed in the solution, ensuring that the solution to be measured submerges the transparent tank. This design ensures image acquisition stability and reduces image blur caused by distance changes.

[0066] Light source control and image acquisition: A multi-channel light source controller adjusts the light intensity to ensure uniform illumination without dark corners. As the light beam passes through the test solution in the transparent tank, it illuminates the tiny particles within. A telecentric lens captures a clear image of these particles and, through optical magnification or reduction, focuses the image onto the industrial camera's CMOS sensor.

[0067] Image processing and transmission: The industrial camera transmits the acquired image information to the multi-channel host, which then uploads the image to the computer via a communication optical terminal. During this process, the multi-channel host can simultaneously receive image information from multiple probes, meaning the operator can simultaneously observe particle image information in different solutions in multiple containers.

[0068] Adaptable to complex industrial environments: The probe's unique design enables it to operate under harsh conditions such as high pressure and high temperature. Its pressure-resistant, temperature-resistant, sealed, and explosion-proof design makes it suitable for complex industrial production environments, such as monitoring crystallization reactions in large industrial reactors.

Claims

1. A multi-probe online particle shape and size analyzer device, characterized in that: The invention comprises a probe (11) and a host (17), wherein a transparent groove (12) is provided on one side of the surface of the probe (11), an industrial camera (15) is fixedly arranged inside the probe (11), a light source (13) is provided on one side of the transparent groove (12), a telecentric lens (14) is provided on the other side of the transparent groove (12), one end of the telecentric lens (14) is connected to one end of the industrial camera (15) by a thread, a data line of the industrial camera (15) is fixedly connected to a packaging cover (16), and the packaging cover (16) is used to seal the probe (11).

2. A multi-probe online particle shape and size analyzer device according to claim 1, characterized in that: The packaging cover (16) is connected to an explosion-proof pipeline at the rear, which contains a camera data line (161) and a light source control line (162).

3. A multi-probe online particle shape and size analyzer device according to claim 2, characterized in that: The host (17) has a built-in network switch (174), a light source controller (175) and a communication optical terminal (176); the network switch (174) is communicatively connected to the communication optical terminal (176); and the light source controller (175) is communicatively connected to the communication optical terminal (176).

4. A multi-probe online particle shape and size analyzer device according to claim 3, characterized in that: The light source (13) is communicatively connected to the light source controller (175) in the host (17) via the light source control line (162).

5. The multi-probe online particle shape and size analyzer device according to claim 4, characterized in that: The industrial camera (15) is connected to the network switch (174) via the camera data line (161).

6. The multi-probe online particle shape and size analyzer device according to claim 5, characterized in that: The light source (13) is arranged at the inner bottom of the probe (11) to form transmissive lighting.

7. The multi-probe online particle shape and size analyzer device according to claim 6, characterized in that: The transparent groove (12) is provided with a window, and the light source (13) provides lighting through the window at the transparent groove (12).

8. The multi-probe online particle shape and size analyzer device according to claim 7, characterized in that: A light source port is provided on one side of the surface of the packaging cover (16), and the light source (13) is communicatively connected to the light source controller (175) in the host (17) via the light source port.

9. The multi-probe online particle shape and size analyzer according to claim 8, characterized in that: A communication port is provided on one side of the light source port, and the industrial camera (15) is communicatively connected to the network switch (174) in the host (17) via the communication port.

10. The multi-probe online particle shape and size analyzer device according to claim 9, characterized in that: The probe (11) is made of one of stainless steel, Hastelloy, niobium-tantalum alloy, titanium alloy and zirconium alloy.

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